CN105242611B - A kind of sequential reproduces cycle controller and sequential control method - Google Patents

A kind of sequential reproduces cycle controller and sequential control method Download PDF

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CN105242611B
CN105242611B CN201510729142.6A CN201510729142A CN105242611B CN 105242611 B CN105242611 B CN 105242611B CN 201510729142 A CN201510729142 A CN 201510729142A CN 105242611 B CN105242611 B CN 105242611B
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肖勤
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423—Input/output
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25419—Scheduling

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control By Computers (AREA)
  • Debugging And Monitoring (AREA)

Abstract

The invention discloses a kind of sequential to reproduce cycle controller, its front end input circuit, drive circuit, display circuit, serial port circuit and memory circuitry for including a MCU, being connected respectively with MCU, power circuit is connected with above-mentioned each circuit, for being powered to above-mentioned each circuit, drive circuit output end connects electrical load, the serial port circuit other end connects host computer, a kind of sequential control method also is provided simultaneously, it comprises the following steps, and S1, power-up initializing parametric variable, MCU timer are set and serial port baud rate configures；Whether S2, inquiry have model selection, enter in next step if "Yes", model selection is continued waiting for if "No"；S3, by selection enter logging mode, reproduction mode, circulation pattern, memory module or serial ports pattern.Present invention application is flexible, is advantageous to improve control efficiency, reduces cost.

Description

A kind of sequential reproduces cycle controller and sequential control method
Technical field
The present invention relates to technical field of automatic control, more particularly to a kind of sequential control method, sequential to reproduce circulation control Device processed.
Background technology
Time schedule controller is typically used in machine tooling industry, available for the various traditional machines for needing Automated condtrol Bed, user is according to the practical situation of oneself come the setting program time, and time schedule controller sets the fortune of automatic control machine tool after unlatching Line program, so as to alleviate the actuating quantity of people, greatly improve efficiency of movement.But the input pattern signal of traditional time schedule controller It is generally necessary to set the specific time, debugging process is complicated, is also easy to produce unnecessary loss.
The content of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, there is provided one kind operation is easier, and process is more directly perceived Control method.
Technical scheme is as follows：
A kind of sequential reproduces cycle controller, including
Front end input circuit, it is used for input signal using hand switch, various Boolean value output sensors or other control circuits；
The MCU being connected with the front end input circuit, for by the state recording of the input front end circuit input signal Get off, and the time to being recorded carries out calculating processing, draws the sequential of the state to be recorded control, can finally circulate on demand Recorded sequential export is utilized to control electrical load；
The drive circuit being connected with the MCU, changed for output level, drive the switch of electrical load；
The display circuit being connected with the MCU, for showing the number and its working condition of recorded state change Instruction；
The serial port circuit being connected with the MCU, interacted using serial communication mode with host computer, downwards transmission setting Good state and time series data, and control instruction；The state and time series data that transmission MCU is recorded upwards；
The memory circuitry being connected with the MCU, for storing recorded state and time series data；With above-mentioned each circuit Connected power circuit, for being powered to above-mentioned each circuit.
A kind of sequential control method of cycle controller realization is reproduced by a kind of above-mentioned sequential, it includes following step Suddenly：
S1, power-up initializing parametric variable, MCU timer are set and serial port baud rate configuration；
Whether S2, inquiry have model selection, enter in next step if "Yes", model selection is continued waiting for if "No"；
S3, by selection enter logging mode, reproduction mode, circulation pattern, memory module or serial ports pattern.
The job step of logging mode in wherein step S3 is specific as follows
S311, record front end input circuit institute input signal original state V0 and its initial time T0；
S312, MCU carry out Edge check to input signal；
S313, the time T1 for recording edging trigger；
S314, calculate time interval variable t [i]=T1-T0；
S315, renewal time variable T0 are equal to current real-time time, i.e. T0=T1, and independent variable i adds 1；
Whether S316, inquiry exit logging mode, enter in next step if "Yes", S312 is returned to if "No"；
S317, record end flag variable endflag are equal to the value i of current independent variable；
S318, return to model selection.
The job step of reproduction mode in wherein step S3 is specific as follows：
S321, original state variable V0 is read, and drive output to be equal to original state；
S322, read current real-time time variable ctime, read access time discontinuous variable t [0]；And calculate next state The run-time variable runtime=ctime+t [0] of change；
Whether S323, inquiry real-time time are equal to run time runtime, enter if "Yes" in next step, if "No" Return continues to inquire about；
S324, driving output state change；
S325, independent variable i add 1；
S326, read current real-time time ctime, read access time interval t [i]；Calculate the operation of next state change Time runtime=ctime+t [i]；
Whether S327, inquiry reproducing processes terminate endflag==i, enter in next step if "Yes", are returned to if "No" S323；
Whether S328, inquiry exit reproduction mode, and model selection is returned if "Yes", is returned if "No" and continues to inquire about.
The job step of circulation pattern in wherein step S3 is specific as follows：
S331, original state variable V0 is read, and drive output to be equal to original state；
S332, read current real-time time variable ctime, read access time discontinuous variable t [0]；And calculate next state The run-time variable runtime=ctime+t [0] of change；
Whether S333, inquiry real-time time are equal to run time runtime, enter if "Yes" in next step, if "No" Continue inquiry to wait；
S334, driving output state change；
S335, independent variable i add 1；
S336, read current real-time time ctime, read access time interval t [i]；Calculate the operation of next state change Time runtime=ctime+t [i]；
Whether S337, inquiry exit circulation pattern, and model selection is returned if "Yes", enter in next step if "No"；
Whether S338, inquiry reproducing processes terminate endflag==i, and S331 is returned to if "Yes", is returned to if "No" S333。
The job step of memory module in wherein step S3 is specific as follows：
Whether S341, inquiry store key parameter (V0, endflag, t [i]), enter if "Yes" in next step, such as "No" Then inquire about and whether exit circulation pattern；
S342, storage critical data are into eeprom memory；
S343, read the key parameter preserved in eeprom memory；
Whether the data and former data that S344, contrast step S343 are read are consistent, to check whether that storage is correct, such as "Yes" Then enter in next step, S341 is returned to if "No"；
Whether S345, inquiry exit memory module, and model selection is returned if "Yes", S341 is returned to if "No".
The job step of serial ports pattern in wherein step S3 is specific as follows：
Whether S351, inquiry have data transfer, enter in next step if "Yes", model selection is returned if "No"；
S352, transmission key parameter (V0, endflag, t [i])；
S353, transmission mode selection control instruction；
Whether S354, inquiry exit serial ports pattern, and model selection is returned if "Yes", S351 is returned to if "No".
The present invention has the following advantages that compared with background technology：
1st, application is wider, can apply and (such as be applied in multiple occasions in streamline, Machine-Tool Control, console etc. Need the place of repetition operation), and Internet of Things, smart home, robot control etc..
2nd, operation is easier, can be combined with a variety of production equipments, form different special for automatic production equipments.
3rd, it is combined with sensor, more complicated control process demand can be met, and be combined into a variety of derived products.
4th, there is iteration and Multi-channel extension ability, it is powerful, available for establishment intelligent plant workshop.
5th, of the invention different from the mode of traditional time schedule controller setting time, traditional time schedule controller usually requires to set The specific time is put, debugging process is complicated；And the present invention is to record sequential by the result of operation, with " What You See Is What You Get " Mode realizes Automated condtrol process, eliminates the step of setting the time, simplifies operation, using flexible, raising control efficiency, drop Low cost.
Brief description of the drawings
Fig. 1 is the hardware architecture diagram of the present invention；
Fig. 2 is the circuit diagram of Fig. 1 embodiments of the present invention；
Fig. 3 is the general flow chart of sequential control method of the present invention；
Fig. 4 is the workflow diagram of the logging mode in sequential control method of the present invention；
Fig. 5 is the workflow diagram of the reproduction mode in sequential control method of the present invention；
Fig. 6 is the workflow diagram of the circulation pattern in sequential control method of the present invention；
Fig. 7 is the workflow diagram of the memory module in sequential control method of the present invention；
Fig. 8 is the workflow diagram of the serial ports pattern in sequential control method of the present invention；
Fig. 9 is the operation principle schematic diagram of the embodiment of the present invention；
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not For limiting the present invention.
Embodiment
As shown in Figures 1 and 2, the invention provides a kind of sequential to reproduce cycle controller, including a model AT89S52 MCU Q4, the front end input circuit Q1, drive circuit Q3, display circuit Q2, serial port circuit Q5 and the storage that are connected respectively with MCU Device circuit Q6, power circuit Q7 are connected with above-mentioned each circuit, and for being powered to above-mentioned each circuit, drive circuit output end connects Connect electrical load, serial port circuit other end connection host computer.
Front end input circuit Q1 is used for input signal using hand switch；
MCU Q4 are used to get off the state recording of input front end circuit Q1 input signals, and the time to being recorded is carried out Calculating is handled, and is drawn the sequential of the state to be recorded control, finally can be recycled recorded sequential export on demand to control Electrical load processed；
Drive circuit Q3 changes for output level, drives the switch of electrical load；
Display circuit Q2 is used to show the recorded number of state change and its instruction of working condition；
Serial port circuit Q5 transmits recorded time and status data to host computer using serial communication mode；
Memory circuitry Q6 uses EEPROM storage chip AT24C04, for storing recorded time and status data.
As shown in figure 9, the operation principle for the state sequential record that the embodiment of the present invention uses, specific as follows
S91, the switch motion sequential of electrical load are, it is necessary to which it is just respectively that the switching sequence of record, which contains three kinds of key parameters, Beginning state V0, time interval t [i], end mark endflag；These three parameters can be used to reduction reproduce to be recorded open Close action sequence.
S92, logging mode state and sequential, the numerical value of key parameter is obtained to record end, MCU since record.
S93, reproduction mode state and sequential, terminate since reproduction to reproduction, the state that MCU reduction S92 is recorded With sequential.
S94, circulation pattern state and sequential, since circulation, MCU circulations reproduce state and sequential that S92 is recorded, Until circulation terminates.
As shown in figure 3, sequential control method provided in an embodiment of the present invention, comprises the following steps：
It is that 10ms is interrupted once that S1, power-up initializing parametric variable i=0, MCU timer, which set timer0, and serial ports is matched somebody with somebody Put baud rate 9600；
Whether S2, inquiry have model selection, enter in next step if "Yes", model selection is continued waiting for if "No"；
S3, by selection enter logging mode, reproduction mode, circulation pattern, memory module or serial ports pattern.
As shown in Figure 4, and with reference to Fig. 9 operation principle it is illustrated, the job step of wherein logging mode is specific as follows
S311, record front end input circuit institute input signal original state V0, due to output reflection input, now export For low level, so V0=0, and initial time T0 is equal to timer timer0 count values；
S312, MCU carry out Edge check to input signal；
S313, count values of the time T1 equal to real-time timer timer0 for recording edging trigger；
S314, calculate time interval variable t [i]=T1-T0；
S315, renewal time variable T0 are equal to current real-time time T0=T1, and independent variable i adds 1；
Whether S316, inquiry exit logging mode, enter in next step if "Yes", S312 is returned to if "No"；
S317, record end flag variable endflag are equal to the value i of current independent variable；
S318, return to model selection
The key parameter that logging mode is recorded in this embodiment is V0=0, t [0], t [1], t [2], endflag=3； These parameters will be used in other patterns.
As shown in Figure 5, and with reference to Fig. 9 operation principle it is illustrated, the job step of wherein reproduction mode is specific as follows
S321, original state variable V0 is read, and drive output to be equal to original state, be now low level；
S322, read current real-time time variable ctime, read access time discontinuous variable t [0]；And calculate next state The run-time variable runtime=ctime+t [0] of change；
Whether S323, inquiry real-time time are equal to run time runtime, enter if "Yes" in next step, if "No" Continue inquiry to wait；
S324, driving output state change；
S325, independent variable i add 1；
S326, read current real-time time ctime, read access time interval t [i]；Calculate the operation of next state change Time runtime=ctime+t [i]；
Whether S327, inquiry reproducing processes terminate endflag==i, enter in next step if "Yes", are returned to if "No" S323；
Whether S328, inquiry exit reproduction mode, and model selection is returned if "Yes", continue inquiry if "No" and wait；
Under reproduction mode in this embodiment, as i=3, the reduction process of sequential is completed, will move out reproduction mode.
As shown in Figure 6, and with reference to Fig. 9 operation principle it is illustrated, the job step of wherein circulation pattern is specific as follows
S331, original state variable V0 is read, and drive output to be equal to original state, be now low level；
S332, read current real-time time variable ctime, read access time discontinuous variable t [0]；And calculate next state The run-time variable runtime=ctime+t [0] of change；
Whether S333, inquiry real-time time are equal to run time runtime, enter if "Yes" in next step, if "No" Continue inquiry to wait；
S334, driving output state change；
S336, independent variable i add 1；
S335, read current real-time time ctime, read access time interval t [i]；Calculate the operation of next state change Time runtime=ctime+t [i]；
Whether S337, inquiry exit circulation pattern, and model selection is returned if "Yes", enter in next step if "No"；
Whether S338, inquiry reproducing processes terminate endflag==i, and S331 is returned to if "Yes", is returned to if "No" S333；
Under circulation pattern in this embodiment, circulation reproduces recorded switching sequence, when exiting signal, just exits Circulation pattern.
As shown in Figure 7, and with reference to Fig. 9 operation principle it is illustrated, the job step of memory module is specific as follows
Whether S341, inquiry store above-mentioned key parameter (V0, t [0], t [1], t [2], endflag), enter if "Yes" In next step, inquired about if "No" and whether exit circulation pattern；
S342, storage key parameter data are into eeprom memory AT24C04；
S343, read the key parameter preserved in eeprom memory AT24C04；
Whether the data and former data that S344, contrast step S343 are read are consistent, to check whether that storage is correct, such as "Yes" Then enter in next step, S341 is returned to if "No"；
Whether S345, inquiry exit memory module, and model selection is returned if "Yes", S341 is returned to if "No"；
As shown in Figure 8, and with reference to Fig. 9 operation principle it is illustrated, the job step of wherein serial ports pattern is specific as follows
Whether S351, inquiry have data transfer, enter in next step if "Yes", model selection is returned if "No"；
S352, transmission key parameter (V0, t [0], t [1], t [2], endflag)；
S353, transmission mode selection control instruction；
Whether S354, inquiry exit serial ports pattern, and model selection is returned if "Yes", S351 is returned to if "No"；
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto, Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in, It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims It is defined.

Claims (6)

  1. A kind of 1. sequential control method, it is characterised in that：Comprise the following steps
    S1, MCU power-up initializing：Carry out parametric variable, timer is set and the configuration of serial port baud rate；
    S2, MCU inquiry front end input circuit signal whether have model selection, if "Yes" enter in next step, if "No" after Continuous standby mode selection；
    S3, MCU enter logging mode, reproduction mode, circulation pattern, memory module or serial ports pattern by selection.
  2. A kind of 2. sequential control method according to claim 1, it is characterised in that：
    The job step of logging mode in step S3 is specific as follows
    The original state variable V0 and its initial time T0 of S311, MCU start recording front end input circuit institute input signal；
    S312, MCU carry out Edge check to input signal；
    S313, the time T1 for recording edging trigger；
    S314, calculate time interval variable t [i]=T1-T0；
    S315, renewal time variable T0 are equal to current real-time time, i.e. T0=T1, and independent variable i adds 1；
    Whether S316, the signal of inquiry front end input circuit exit logging mode, enter in next step if "Yes", are returned if "No" To S312；
    S317, record end flag variable endflag are equal to the value i of current independent variable；
    S318, return to model selection.
  3. A kind of 3. sequential control method according to claim 1, it is characterised in that：
    The job step of reproduction mode in step S3 is specific as follows
    S321, MCU start to read original state variable V0, and export the original state to drive circuit；
    S322, read current real-time time variable ctime, read access time discontinuous variable t [0]；And calculate next state change Run-time variable runtime=ctime+t [0]；
    Whether S323, inquiry real-time time are equal to run time runtime, enter in next step if "Yes", are returned if "No" Continue to inquire about；
    S324, MCU change signal to drive circuit output state；
    S325, independent variable i add 1；
    S326, read current real-time time variable ctime, read access time discontinuous variable t [i]；Calculate next state change Run-time variable runtime=ctime+t [i]；
    Whether S327, inquiry reproducing processes terminate endflag==i, enter in next step if "Yes", are returned to if "No" S323；
    Whether S328, the signal of inquiry front end input circuit exit reproduction mode, model selection are returned to if "Yes", if "No" Return continues to inquire about.
  4. A kind of 4. sequential control method according to claim 1, it is characterised in that：
    The job step of circulation pattern in step S3 is specific as follows
    S331, MCU start to read original state variable V0, and export the original state to drive circuit；
    S332, read current real-time time variable ctime, read access time discontinuous variable t [0]；And calculate next state change Run-time variable runtime=ctime+t [0]；
    Whether S333, inquiry real-time time are equal to run-time variable runtime, enter if "Yes" in next step, if "No" Continue inquiry to wait；
    S334, MCU change signal to drive circuit output state；
    S335, independent variable i add 1；
    S336, read current real-time time variable ctime, read access time discontinuous variable t [i]；Calculate next state change Run-time variable runtime=ctime+t [i]；
    Whether S337, the signal of inquiry front end input circuit exit circulation pattern, model selection are returned to if "Yes", if "No" Into in next step；
    Whether S338, inquiry reproducing processes terminate endflag==i, and S331 is returned to if "Yes", S333 is returned to if "No".
  5. A kind of 5. sequential control method according to claim 1, it is characterised in that：
    The job step of memory module in step S3 is specific as follows
    Whether S341, MCU are started a query at stores key parameter, and key parameter includes the initial of front end input circuit institute input signal State variable V0, end mark variable endflag, time interval variable t [i], enter in next step if "Yes", looked into if "No" Whether inquiry exits circulation pattern；
    S342, storage critical data are into memory circuitry；
    S343, read the key parameter preserved in memory circuitry；
    Whether the data and former data that S344, contrast step S343 are read are consistent, to check whether that storage is correct, enter if "Yes" Enter in next step, S341 is returned to if "No"；
    Whether S345, the signal of inquiry front end input circuit exit memory module, model selection are returned to if "Yes", if "No" Return to S341.
  6. A kind of 6. sequential control method according to claim 1, it is characterised in that：
    The job step of serial ports pattern in step S3 is specific as follows
    S351, MCU start a query at whether serial port circuit has data transfer, enter in next step if "Yes", mould is returned if "No" Formula selects；
    S352, transmission key parameter, key parameter include the original state variable V0 of front end input circuit institute input signal, terminated Indexed variable endflag, time interval variable t [i]；
    S353, transmission mode selection control instruction；
    Whether S354, the signal of inquiry front end input circuit exit serial ports pattern, model selection are returned to if "Yes", if "No" Return to S351.
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CN1312963C (en) * 2003-06-24 2007-04-25 廖志梅 Urban road light time control system
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US20120086286A1 (en) * 2010-10-12 2012-04-12 Schneider Electric USA, Inc. Cycling load controller having a learn mode for automatically determining when the load is turned on and off
US9523980B2 (en) * 2011-03-03 2016-12-20 Emhart Glass S.A. Closed loop cyclic timing optimizer control system and method
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